body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #f8f9fa;
}

.navbar {
    box-shadow: 0 1px 4px rgba(0,0,0,.2);
}

.card {
    border-radius: 8px;
}

.table th {
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.border-danger  { border-left: 4px solid #dc3545 !important; }
.border-warning { border-left: 4px solid #ffc107 !important; }
.border-secondary { border-left: 4px solid #6c757d !important; }